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Diffstat (limited to 'arch/powerpc/mm/dump_sr.c')
-rw-r--r--arch/powerpc/mm/dump_sr.c64
1 files changed, 0 insertions, 64 deletions
diff --git a/arch/powerpc/mm/dump_sr.c b/arch/powerpc/mm/dump_sr.c
deleted file mode 100644
index 501843664bb9..000000000000
--- a/arch/powerpc/mm/dump_sr.c
+++ /dev/null
@@ -1,64 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0+
-/*
- * Copyright 2018, Christophe Leroy CS S.I.
- * <christophe.leroy@c-s.fr>
- *
- * This dumps the content of Segment Registers
- */
-
-#include <asm/debugfs.h>
-
-static void seg_show(struct seq_file *m, int i)
-{
- u32 val = mfsrin(i << 28);
-
- seq_printf(m, "0x%01x0000000-0x%01xfffffff ", i, i);
- seq_printf(m, "Kern key %d ", (val >> 30) & 1);
- seq_printf(m, "User key %d ", (val >> 29) & 1);
- if (val & 0x80000000) {
- seq_printf(m, "Device 0x%03x", (val >> 20) & 0x1ff);
- seq_printf(m, "-0x%05x", val & 0xfffff);
- } else {
- if (val & 0x10000000)
- seq_puts(m, "No Exec ");
- seq_printf(m, "VSID 0x%06x", val & 0xffffff);
- }
- seq_puts(m, "\n");
-}
-
-static int sr_show(struct seq_file *m, void *v)
-{
- int i;
-
- seq_puts(m, "---[ User Segments ]---\n");
- for (i = 0; i < TASK_SIZE >> 28; i++)
- seg_show(m, i);
-
- seq_puts(m, "\n---[ Kernel Segments ]---\n");
- for (; i < 16; i++)
- seg_show(m, i);
-
- return 0;
-}
-
-static int sr_open(struct inode *inode, struct file *file)
-{
- return single_open(file, sr_show, NULL);
-}
-
-static const struct file_operations sr_fops = {
- .open = sr_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
-};
-
-static int __init sr_init(void)
-{
- struct dentry *debugfs_file;
-
- debugfs_file = debugfs_create_file("segment_registers", 0400,
- powerpc_debugfs_root, NULL, &sr_fops);
- return debugfs_file ? 0 : -ENOMEM;
-}
-device_initcall(sr_init);